package com.jielihaofeng.atguigu.netty.heartbeat;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.handler.timeout.IdleStateEvent;

/**
 * @author Johnnie Wind
 * @description 心跳处理器
 * @date 2021/11/27 11:55
 */
public class MyServerHandler extends ChannelInboundHandlerAdapter {

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {

        if (evt instanceof IdleStateEvent) {
            // 向下转型
            IdleStateEvent event = (IdleStateEvent) evt;
            String eventType = null;
            switch (event.state()) {
                case READER_IDLE:
                    eventType = "读空闲";
                    break;
                case WRITER_IDLE:
                    eventType = "写空闲";
                    break;
                case ALL_IDLE:
                    eventType = "读写空闲";
                    break;
            }
            System.out.println(ctx.channel().remoteAddress() + "--超时时间--" + eventType);
            System.out.println("服务器做相应处理");

            // 发生空闲直接关闭通道
//            ctx.channel().close();
        }
    }
}
